Author:
Bhatia B.L.,Rajasekaran S.
Abstract
Letbelong to the class of α-spiral functions of order ρ(|α| < π/2, 0 ≤ ρ < 1). In this paper, we determine sharp coefficient estimates for functions of the formf(z)t, wheretis a positive integer. We also study the influence of the second coefficient on the other coefficients for such functions. The results obtained not only generalize the results of MacGregor, Boyd, Srivastava, Silverman and Silvia and others, but also give rise to new results.
Publisher
Cambridge University Press (CUP)
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